Story is, it was printed on a Chandler & Price letterpress by Fireproof Press, i.e., John Upchurch, Jeff Mueller et al. Though Fireproof became defunct not long after this, Mueller continues as Dexterity Press in Chicago.
He sure has.
The challenge is to take that influence somewhere exciting and individual. Seripop have done this like champs. So have Michael DeForge, Jesjit Gill, some others.
But there is a huge ton of other Mat Brinkman-influenced poster art that just borrows his language and does nothing with it. It's like a phase that lots of young poster makers go through on their way to somewhere else.
Mat Brinkman is the Jay Ryan of noise rock.